Wow. I've never quite seen a descriptor dump like that.
As the maintainer of the USB Mass Storage driver, I think you should
probably take choice (a) -- return it, it will most likely never work.
If Lexar could be convinced to give up specs, there is a possibility that
a driver could be written. But that descriptor dump looks so radically
different from any other storage device I've ever worked with that I think
it's unlikely to happen.
If you're looking for a CF reader, I can suggest the SanDisk Imagemate --
the unit that looks like a little igloo with an eject button on the front.
Be careful not to confuse this with the almost identical-looking unit that
does not have the eject button on the front. Only the unit with the eject
button works for now.
Matt Dharm
On Wed, 19 Apr 2000, Vegard Engen wrote:
> Today, I bought a Lexar Media USB SmartMedia/CompactFlash/PCMCIA-reader.
> However, with the option to return it, as I was less than sure whether or not
> it followed the USB mass storage specifications. From the look of the mailing
> list, it doesn't, either, can anyone confirm/deny it?
>
> Anyways, is there any hope of getting it to work in the near future? Does
> anyone know anything about it? I'll return it if it doesn't work, but will be
> willing to participate in testing/debugging and perhaps developing - although
> I haven't done any kernel development at all before.
>
> So, basically I'm looking for advice.
>
> Should I:
>
> a) return it, it will most likely never work
>
> or
>
> b) keep onto it, it'll work in not too distant future
>
> Oh, btw:
>
> My /proc/bus/usb/devices with the unit attached looks like this:
>
> [root@middagspynten bus]# cat /proc/bus/usb/devices
> T: Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=12 MxCh= 2
> B: Alloc= 0/900 us ( 0%), #Int= 0, #Iso= 0
> D: Ver= 1.00 Cls=09(hub ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1
> P: Vendor=0000 ProdID=0000 Rev= 0.00
> S: Product=USB UHCI Root Hub
> S: SerialNumber=ef80
> C:* #Ifs= 1 Cfg#= 1 Atr=40 MxPwr= 0mA
> I: If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub
> E: Ad=81(I) Atr=03(Int.) MxPS= 8 Ivl=255ms
> T: Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 2 Spd=12 MxCh= 0
> D: Ver= 1.00 Cls=ff(vend.) Sub=ff Prot=ff MxPS=64 #Cfgs= 1
> P: Vendor=07cc ProdID=0004 Rev= 0.01
> C:* #Ifs= 1 Cfg#= 1 Atr=80 MxPwr=100mA
> I: If#= 0 Alt= 0 #EPs= 0 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
> I: If#= 0 Alt= 1 #EPs=13 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
> E: Ad=81(I) Atr=03(Int.) MxPS= 16 Ivl= 10ms
> E: Ad=82(I) Atr=02(Bulk) MxPS= 64 Ivl= 0ms
> E: Ad=02(O) Atr=02(Bulk) MxPS= 64 Ivl= 0ms
> E: Ad=84(I) Atr=02(Bulk) MxPS= 64 Ivl= 0ms
> E: Ad=04(O) Atr=02(Bulk) MxPS= 64 Ivl= 0ms
>
> E: Ad=86(I) Atr=02(Bulk) MxPS= 64 Ivl= 0ms
> E: Ad=06(O) Atr=02(Bulk) MxPS= 64 Ivl= 0ms
> E: Ad=88(I) Atr=01(Isoc) MxPS= 16 Ivl= 1ms
> E: Ad=08(O) Atr=01(Isoc) MxPS= 16 Ivl= 1ms
> E: Ad=89(I) Atr=01(Isoc) MxPS= 16 Ivl= 1ms
> E: Ad=09(O) Atr=01(Isoc) MxPS= 16 Ivl= 1ms
> E: Ad=8a(I) Atr=01(Isoc) MxPS= 16 Ivl= 1ms
> E: Ad=0a(O) Atr=01(Isoc) MxPS= 16 Ivl= 1ms
> I: If#= 0 Alt= 2 #EPs=13 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
> E: Ad=81(I) Atr=03(Int.) MxPS= 64 Ivl= 10ms
> E: Ad=82(I) Atr=02(Bulk) MxPS= 64 Ivl= 0ms
> E: Ad=02(O) Atr=02(Bulk) MxPS= 64 Ivl= 0ms
> E: Ad=84(I) Atr=02(Bulk) MxPS= 64 Ivl= 0ms
> E: Ad=04(O) Atr=02(Bulk) MxPS= 64 Ivl= 0ms
> E: Ad=86(I) Atr=02(Bulk) MxPS= 64 Ivl= 0ms
> E: Ad=06(O) Atr=02(Bulk) MxPS= 64 Ivl= 0ms
> E: Ad=88(I) Atr=01(Isoc) MxPS= 256 Ivl= 1ms
> E: Ad=08(O) Atr=01(Isoc) MxPS= 256 Ivl= 1ms
> E: Ad=89(I) Atr=01(Isoc) MxPS= 16 Ivl= 1ms
> E: Ad=09(O) Atr=01(Isoc) MxPS= 16 Ivl= 1ms
> E: Ad=8a(I) Atr=01(Isoc) MxPS= 16 Ivl= 1ms
> E: Ad=0a(O) Atr=01(Isoc) MxPS= 16 Ivl= 1ms
>
> - Vegard
>
>
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Matthew Dharm Home: [EMAIL PROTECTED]
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Somebody call an exorcist!
-- Dust Puppy
User Friendly, 5/16/1998
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